US2767393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Approach alarm system with unwanted signal elimination
Assignee: Kidde Inc
•
Filing: 1953-08-03
•
Granted: 1956-10-16
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Bagno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/16; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2199189A
Cited
US2307771A
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US2374248A
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US2421771A
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US2420232A
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US2507359A
Cited
US2578347A
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US2655645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |